Sound-box for talking-machines.



I 11.3, JOHNSON.

scum) Box ron TALKING momma.

- LPPLIOL'I'IOI FILED 2213.9, 1907.

951,127}- v Patented Mar. 8, 1910.

INVENTOR adwq ezmm I WITNESSES w ATTORNEY STATES PATENT OFFICE.

EIZDBIDGE R. JOHNSON, F MERTON, PENNSYLVANIA, ASSIGNOR TO VICTOR TALKINGMaonm i COMPANY, A CORPORATION 01 NEW JERSEY.

SO'lJ'NDfiBOX FOR TALKING-MACHINES.

Specification of Letters Batent. Application filed February 9, 1907.Serial No, 356,530.

Patented Mar. 8, 1910.

i To all whom it may concern:

Be it known that I, Emmmse R. JOHNSON, a citizen of the United States,and a resident of Merion, county of Montgomery, State of Pennsylvania,have invented certain new and useful Improvements in Sound-Boxes forTalking-Machines, of which the following is a full, clear, and completedisclosure, reterence being had. to the accompanying drawings formingpart of this specification,

The main objects'of this invention are; to provide a stylus bar andmounting therefor of: simpleconstruction and of few arts, and

havingno parts subject to wear L as to the oscillation of the bar, orlikely. to become loose and to. permit of lost motion of the bar; toprovide an improved mounting for a stylus bar. that will permitthe barto oscillate in a single plane about a substantiall fixed axis but wiich will hold the bar rigidly"against any other movement with respectto its mounting; to providean improved mounting for a st his bar whichwill counteract a'ny undesira le momentum or I movement of the bar'; toprov de in a sound us ar and mounting' box an improved styl therefor incombination with a diaphragm, of the stylus bar will be in-the plane ofthe diaphragm, so that the movement of the' end of the stylus barconnected to the diaphragm will be in a direction perpendicular to thediaphragm so as not to exert any oblique stress upon the dia hraintending tobuckle it; and to rovi e 0t ier improvements as will ap earereinafter. j v

n the accompanying drawings, F igure 1 is a front' elevation of ,asoundbox constructed in accordance with this invention; Fig. 2.is a sideelevation of the same; Figl 3 a longitudinal section on lines 33 ofFigs. 1 and}; and Fig. t a fragmentary bottom planview of the so'iindbox.

Referring to the drawings, the improved soundl'box comprises the usualcylindrical casing l supporting the usual diaphragm 2. The stylus bar3-is connected at its upper end 4 to the diaphragm by any suitablemeans, and the lower end 5 of the stylus bar is offset and provided witha central socket adapted to receive the stylus 6. The stylus bar isprovided with a pair of opposite projectmg rigid lateral extensions 7--'each of which-has at its outer end a slot 8.- The stylus bar mounting,comprises a rigid laminatedsupporting plate 9, which is substan-- tiallyrectangular in general outline, and is provided upon its edge adjoiningthe stylus bar with a recess 10 ada ted to receive the oifset portion ofthe bar, eaving a rigid bifurcated arm 11 projecting rigidly outwardlyon each side of the supporting plate. The rigid supporting plate ispreferably formed of three thicknesses or laminations,=' the centralthickness beingless in width than the width of the other thicknessesand'extending from the inner edge of the recess 10 to the opposite edgeof open spaces or slots 12 forming the-said bifurcated arms 11;

The stylus bar is yieldingl connected to the rigid 'supportin plate 9 ymeans of a pair of spaced yiefii' one of which is fastened at one endinone of the said'slots 8 of the lateral extensions of the stylus bar, bymeans of a single screw 14, and at its opposite end in thecorrespond ingslot 12 in the arm of the sup orting plate, by means of two screws 14.The yielding members are preferably arranged parallel to each other, tosecure strengthand simplicity of construction, but the arrangement mightbe varied for instance by having the members converge or diverge,and-the members would still perform their functions. These yieldingmembers 13' are preferably made of comparatively thin spring steel,oblon in cross section, and preferably tempere but it is obvious thatpractically any flexible material may be used instead of steel.- otherresilient material is used for the yielding members, the resiliency ofthe mater-ialac'is to counteract 'the momentum of 9.5

the bar when itoscillates. Steel springs for this puripose can be madeas'thin and ield-' ing as esired, and tempered to any egree:

of resiliency preferred, and owing 10 the the. springs-may: 1 0 0 bemade cheaply 'in quantities with greatsimplicity of their. design,

uniformity. To restrain the stylus bar to oscillate upon a substantiallyfixed axis, the

bar and its fixed supporting plate are spacedouly a very short distanceapart, the-dis- 105 tance being only suiiicient to 'ermi't of'thenecessary oscillation of the ar, without bringing the bar intb contactwi and the yielding members supporting the bar are therefore permittedthe plate, leaving" between the outer thicknesses of the'arms ofsaidplate, thus mg members 13, each. v

WVhen steel or-any th the plate,

to hex only movably secured to a lug or sup ort 15 upon about asubstantially lixed axis constitutin the axis of oscillation of the bar.a

, From this description it will be apparent that the ends of the steelsprin 13 are entirely inclosed and clamped i etween the laminations ofthe rigidsu porting late 9 on the sound box cas ng and the rigi lateralextensions 7 of the stylus bar. These clampin means render the entirelength of the sa: springs-rigid except that 'a -very minute portion 0the same which forms the axis of the oscillation of the stylus bar. Ashas beenpointed out the distance between the clamping) members of thecasin and of the sty us to permit the stylus bar to oscillate withoutefl'ecting any engagement or contact between said clamping-members. Bythisconstruction the stylus bar is restrained to oscillate upon a. fixedaxis, or in other words the axis of oscillation of the st lus bar isalwavs in the same position wit respectto the casing and to the stylusbar irrespective of the wei ht of the sound box or the ppes sure to whicit may be subjected on account of an; inequalities or irregularities inthe recor which isbeing to need.

The supporting p ate 9 is rigidly but rethe casing of the sound box 1, ymeans-of screws 16, and is arran ed so that the axis of oscillation ofthe sty us bar and the longitudinal axis of the st Ius socket aresubstantially in the centra lane of the diaphragm. When the sty us bar'is thus mounted, the movement of the end of the bar connected to thediaphragm will be in a direction perpendicular to the plane of thediaphragm.

Althou h trated on in its preferred form, many changes might be made inthe construction shown without departing fyo the s irit of thisinvention or the scope e the 0 lowing claims.

.Having thus described my invention,what I claim and desire to protectby Letters Pat-' ent of the United States is:

1. The combination with a stylus bar, of

spaced yielding members free to bend but held against torsion, saidmembers extendlug transversely of said bar, forming the so e supportthereof, and restraining said bar to oscillate upon a substantiallyfixed axis.

2. The combination with a stylus bar, of spaced spring members free tobend but held against torsion said springs extending transversely ofsaid bar, ormmg the sole sup ort thcreoi, and restraining said bar toosei late upon a substantially fixed axis.

3. The combination with a stylus bar, of spaced flat spring members freeto bend but held a inst torsion said spring members extendingtransversely of said bar, forming or is preferably only su 'cientsocket, an

this invention has been illus-' vrunner:

the sole support thereof, and restraining said bar to oscillate upon asubstantially fixed axis.

4. The combination with a stylus bar provided with rigid lateralextensions, of yieldin members connected to said extensions an extendintransversely'of said bar, said yieldin mem rs forming the sole suppoutfor sai bar, and restraining said bar to oscillate upon a substantiallyfixed axis.

5. In a sound box, a stylus bar provided with rigid lateralextensions-and yieldin members connected to said extensions an extendingtransversely of said stylus bar forming the solcsupport for said stylusbar, said bar bein retained to oscillate upon a substantially xed axis.

6. In a sound box, thecombination with a diaphragm, of a stylus barhaving a stylus spaced yielding supports for said bar extendin insubstantially the same direction there rom' and transversel thereof, theion 'tudinal axis of said soc 'et being substantially in the plane ofthe diaphragm.

7. In a sound box, the combinat on with a diaphra of a stylus bar havinga stylus socket, an spaced yleldin supports torsaid bar extendin insubstantially the same direction there mm, the longitudinal axis of saidsocket and the axis of oscillation of the said bar being substantiallyin the plane of the diaphragm.

8. In a sound box, the combination with a diaphragm, of a stylus bar,rigid lateral extensions arranged upon op1 osite sides of said bar andrigid therewit and yielding supports for said bar secured tralw erselyof 'said bar to said extensions and projecting in substantially the samedirection therefrom, said bar being restrained to oscillate upon asubstantially fixed axis.

9. In a sound box, the combination with a diaphragm, of a stylus bar,rigid lateral extensions arran d upon opposite sides of said bar andrigi therewith, and flat spring supports for said bar securedtransversely of said bar to said extensions and projecting insubstantially thesame directiontlferefrom, said bar beingrestrained tooscillate upon a substantially fixed axis.

10. In a sound box the combination with a diaphragm, of a stylus barhaving a stylus socket, rigid lateral extensions arranged uponopposite'sidesof said bar and rigid therewith, and yielding supports forsaid bar secured transversely of said bar to said extensions andprojecting in the same direction therefrom, the longitudinal axis ofsaid socket bein in a plane perpendicular to the axis of osci lation ofsaid bar, and said axis of oscillation being substantially fixed.

11. In a sound box, the combination with a diaphragm, of a stylus buthaving a stylus socket, rigid lateral extensions arranged upon oppositesides of said bar and rigid 180 therewith, an d yielding supports forsaid bar secured transversely of said bar to said extensions andprojecting-in the same direction therefrom, the-longitudinal axis ofsaid socket being in the plane of the diaphragm. 12. In a sound -box,the combination with a diaphragm, of a stylus bar having a styuponopposite sides of said bar and rigid 'lus socket, rigid lateralextensions arranged therewith, and yielding supports for said I barsecured transversely of said bar to .said

the same direction therefrom, the longitudisocket and the axis ofoscillation of said late f "offset and a stylus socket, and spaced Hatsaid socket and theaxis of oscillation of the 'bar spaced therefrom andprovided with 'a stylus bar, said stylus bar being so arranged adiaphragm, of a fixed member, astylus extensions and projecting insubstantially being in the plane of thediaphragm.

14. In a sound bo x,,t'he combination with a diaphra m, of a fixedmember, a stylus stylus socket and spaced fiat spring conncctionsbetween the said fixed member and the that the longitudinal axisof'its'outer end and its axis of oscillation are in-the plane of thediaphragm.

15.111 a sound box, the combination with a diaphragm, of a fixed member,a stylus bar spaced therefrom and provided with an springs connectingthe said fixed-member and said stylus bar. the longitudinal axis of saidbar being in the plane of the diaphragm. 16.' In a sound box, thecombination Wllll bar spaced therefrom and provided with an oll'set'andwith lateral extensions. and yieldof the diaphragm between on saidlateral extensions and the said fixed member, the

0 I an; connections extending toward the plane I axis ofoscillatiou ofsaid stylus baebeing. substantially in the planeof the diaphragm. 17;Ian sound box, the combination with a diaphragm of a fixed memberprovided with a recessed edge, a stylus bar spaced therefrom andprovided with an offset extending within said recess but spaced fromsaid'fixednncmber, said stylus bar being further provided with lateralextensions,

substantially in the plane of the diaphragm.

18. In a sound box, the combination with 'adiaphragm, of a fixed memberprovided i I i i l and yielding connections between the said i with arecessed edge, a stylus bar spaced 1 therefrom and provided with anoffset; extending within said recess but spaced from said fixed member,saidstylus bar being further provided with and resilient connectionsbetween the said extensions and the said fixed member, the axis ofoscillation of the stylus bar being lateral extensions 1 substantiallyin the plane of the-dia hragm. 19. In a sound box, the combination witha diaphragm, of a fixed member, astylus bar spaced therefrom andprovided with an ptl'set and with lateral extensions, and flatspringconnections extending transversely l'of said bar and substantlallyperpendicular to the diaphragm between the said lateral extensions andthe said fixed member, the

axis of oscillation of said stylus bar being substantially in the plane-with the dia phragm.

20. In a sound box, the combination-with: a diaphragm, of a fixedmember, a stylus bar spaced therefrom and provided. with an offset, andwith a stylus socket. and lateral extensions, and yielding connectionsbetween the said lateral extensions and the said fixed n'lember, thelongitudinal axis of said socketand-the axis' of oscillation of said barbeing substantially in the plane of the diaphragm.

21. The combination in a sound box of a diaphragm a fixedmember-provided with a recessed edge, a stylus bar spac'ed there fromand rovided with an offset extended within saicl recess but spaced fromsaid fixed member, said stylus barbeing further proyided-with a stylussocket and lateral ex-- tensions, and'yielding connections betweeh saidextensions and the said fixed member.

the longitudinal axis of said socket and the, axis of oscillation ofsaidbar being subs I stantially in the plane of the diaphragm.

22. The combination in a' sound box of a diaphragm, a fixed memberprovided with a recessed edge, a stylus bar spaced therefrom andprovidedwith an otl'set extended within said recess but spaced from saidfixed mcmber, said stylns bar being further provided. with a stylussocket and lateral extensions, and yielding connections between saidextensions and the said fixed member. the longitudipal axis of saidsocket and the axis of oscillation of said bar being substantially inthe plane of the diaphragm; and said springs being arranged .in a planen'rpendicular to the plane of the diaphrgam. and in a plane of the axisof oscillation ofthe stylus b'ar.

23. In a sound box. the combination of a stylus bar, a fixednn-mbe'r'constructed of laminations to form spaced slots, and tlatsprings secured in said slots and to said stylus bar to form a supportfor said bar.

24. In a sound box, a'tixed member. a stylus baehaving'extensions formedof laminations arranged to form slots, and spaced flat springs securedin said slots and conbar having one I is to the plane of the saidsprings,

.and said bar being restraine nected to said fixed member to supportsaid f 26. In a sound box, a'diaphragm, a stylus bar having one endthereof inacoustic contact with saiddia hragm, and spaced springslocated "on opposite sides of said stylus bar rojecting in the samedirection, upon whic said stylus bar is su ported upon the soundboxcasing, the sai stylus bar being'located in aplane at right angles saidsprings ainst torsion being to'} oscillate free to bend "but held a upona substantially fixed axis. 27. The combination with a sound box, of a,dia hragm, spaced springs connected with sai casing and projecting inthe same direction therefrom, and a stylus bar having one end thereofinacoustic contact with said diaphragm, said.stylus bar having a stylussocket, and being mounted between and upon saidsprings, the longitudinalaxis of said socket being at right angles to the axis of oscillation ofsaid bar, 28. In a sound box, a stylus stylus socket, and spacedyielding members forming the sole support of said bar extendingtransversely oi said. bar, the longitudinal axis of the said socketbeing perpendicular to the axis ofoscillation of the bar.

29. In a soundbox thccombination with a fixed member of a diaphragm, astylus bar having a stylus socket, and spaced yielding membersformingthe sole support for said bar, the longitudinal axis of said socketbeing substantially and the axis of oscillation of the stylus bar in theplane of the diaphragm. a

30. In a sound box the combination with a fixed member, of a diaphragm,astylus bar havin a socket, and spaced yielding members ormin thesolesupport for said bar, the longitu mal axis of the said socket and theaxis of oscillation of the stylus bar being substantially in line withthe plane of the diaphragm, and'the longitudinal axis'of the socketbeing in a'plane perpendicular to the axis of oscillation.

31. In a sound box, a diaphragm, a stylus bar, having. one end thereofin accoustic contact with said diaphragm and having a longitudinalstylus socket, spaced yielding perpendicular to the nected thereto and'provid bar having a being members projecting in the same direction fromsaid stylus bar between which said stylus bar is lo'cated and upon whichit is supported upon contact between the stylus bar and diaphragm andthe axis ofsaid socket being in alinement in a plane at right angles.to-the plane of the dia 'hragm', substantially midway between sai sprin32., In a sound box, t ie combination with a diaphragm, of a stylus barhonetically conwith rigid lateral extensions,,and spaced flat springsoblong in transverse section connected to said extensions and formingthesole support for saidstylus bar, said bar being movable about asubstantially fixed axis only.

33. In a sound box, the combination with a diaphragm, of a stylus barphonetically secured thereto, and spaced spring members oblong in crosssection and holding each other against torsion forming the'sole supor'tfor said bar, said bar being movable about a substantially fixed axisonly.

34. In a soundbox, the combination with a fixed member, of a diaphragm,a stylus bar spaced from said fixedm member and phonetically connectedto and spaced yielding members extending transversely of said bar andtoward the plane of said diaphragm. connecting said fixed member andsaid bar, said bar being movablsmbout a substantially fixed axis only.

35. The combination with a rigid member, of a stylus bar, and yieldingmeans connecting said stylus bar to said rigid member, said stylus barbeing restrained to oscillate upon a substantially fixed axis.

- 36. The combination with a rigid member, of a stylus bar, and yieldingmeans connecting said rigid member and said bar and forming the solesupport for said bar, said bar being restrained to oscillate upon asubstantially fixed axis.

' 37. The combination with a stylus bar, of spaced yielding membersforming the sole support thereof, said members being free to bend butheld against torsion and said bar restrained ,to oscillate upon asubstantially fixed axis. I

38. The combination with a stylus bar, of spaced 'yielditig members freeto bend but held against torsion forming the sole support of said bar,and restraining su id bar to oscillate upon a substantially fixed axis,each of said yielding members being fixed at one end and free toyield'at its other end and connected at its free 39. The combinationwith a sound box casing 11nd stylus bar, of yielding meansfor attachingsaid stylus bar to said casing, means moiinted upon the casing forrendering one end. of saidiyielding means rigid, means carried by. thestyalns. bar for rendersaid diaphragm,

end to said stylus bar.-

the sound box, the point of yielding means ing the other end of said ngthe ends of rigid, the said means for hol said yielding means rigid beinspaced apart from each other for only a su cient distance 5 as? will'allowwthe said stylus bar to oscillate without efiecting an actual enagement of 5 said meangfor holding said en s rigid.

40. The combination with a stylus bar provided with rigid lateralextensions, of

"yie1ding -members connected to said extenextensions,-, forming sionsand extending transversely of said said stylus bar, said stylus barbeing ref, to oscillate upon a substantially 41 The combination with astylus bar provided with rigid lateral extensions, of

.,,yielding members connected to said exten- ,sions and extendingtransversely of said flojxtensions, and transversely of said stylus barformingthe sole support for said stylus bar, said stylus bar beinrestrained to oscillate upon a substantial y fixed axis.-

42; The combination with a stylus bar,

of a-fixed memlier constructed of; laminae tions to form space slots,and yielding members secured in said slots and to said stylus bar toform a support for said bar. v

'43. The combination with a stylus bar, of

80:9. 'member constructed of laminations to form a slot, and a yieldingmember secured in said slot and forming a support for said ar. 44. Thecombination with a stylus bar of 5 85 spaced yielding members formin thesole supporting member, yielding means, means independent of saidattaching means for securing said yielding means to said supportfiorrectieiisgin Letters Patent No. 951,12-7. Y

in. the Patent Ofiice.

the sole support for- Signed and sealed this 5th day of April, A. 1).,1910.

ing member, and a stylus barsecured to said yielding means.

A6., The' combination with a support, of a supporting member, attachingmeans detachably connecting said support and said supporting member,spaced yielding members, means independent of said attaching means forsecuring said yielding members to said supporting member and a stylusbar secured to said yielding members.'

47. The combination with a member having a pair of spaced rigid armsrigid therewith, of st lus barprojectin' in the space between said arms.and a yie ding connection between each. of stylus bar.

48. The combination with a stylus bar, of spaced yielding members freeto bend but said arms and said held against torsion, each of saidmembers being fixed at one end and free at its opposite end and saidmembers being connected at their free ends to said stylus bar.-

49. The combination with a stylus bar, of spaced yielding members freeto bend but held against torsion, each of said members being fixed atone end and free at its opposite end and said members. bein connected attheir free ends to said stylus ar forming the sole su port of said bar.

50. The comlimation with a stylus bar, of spaced yielding members freeto bend but held against torsion, each of said members being fixed atone end and free at its opposite end and said members bein connected attheir free ends to said st lus ar forming the sole support of sai barand restraining said barto oscillate-upon a substantially fixed axis.

In witness whereof I have hereunto set my hand this seventh day ofFebruary, A. 'D. 8

ELDRIDGE R. JOHNSON. \Vitnesses:

ALs'roN B. MoUL'roN, 1 Timmy Conn KENNEDX.

It is hereby certified that in Letters Patent No. 951,127.,granted March8, 1910, upon the application of Eldridge Johnson, of Merion,Pennsylvania, for an improvement in Sound-Boxes for Talking-Machines,errors appear in the printed specificationrequiring correction asfollows: Page 4, line 28, after the word box the word casing should beinserted; same page, line 54, before the word socket" the word stylusshould be inserted; and that the said Letters Patent should be read withthese corrections therein that the same may conform to the record of thecase I c. c. BILLINes, Acting Oomnaissioner of Patents.

yielding means ing the other end of said ng the ends of rigid, the saidmeans for hol said yielding means rigid bein spaced apart from eachother for only a su cient distance 5 as? will 'allowwthe said stylus barto oscillate without efiecting an actual en agement of 5 said meangforholding said en s rigid.

40. The combination with a stylus bar provided with rigid lateralextensions, of

"yie1ding -members connected to said extenextensions,-, forming sionsand extending transversely of said said stylus bar, said stylus barbeing ref, to oscillate upon a substantially 41 The combination with astylus bar provided with rigid lateral extensions, of

.,,yielding members connected to said exten- ,sions and extendingtransversely of said flojxtensions, and transversely of said stylus barformingthe sole support for said stylus bar, said stylus bar beinrestrained to oscillate upon a substantial y fixed axis.-

42; The combination with a stylus bar,

of a-fixed memlier constructed of; laminae tions to form space slots,and yielding members secured in said slots and to said stylus bar toform a support for said bar. v

'43. The combination with a stylus bar, of

80:9. 'member constructed of laminations to form a slot, and a yieldingmember secured in said slot and forming a support for said ar. 44. Thecombination with a stylus bar of 5 85 spaced yielding members formin thesole supporting member, yielding means, means independent of saidattaching means for securing said yielding means to said supportfiorrectieiisgin Letters Patent No. 951,12-7. Y

in. the Patent Ofiice.

the sole support for- Signed and sealed this 5th day of April, A. 1).,1910.

ing member, and a stylus barsecured to said yielding means.

A6., The' combination with a support, of a supporting member, attachingmeans detachably connecting said support and said supporting member,spaced yielding members, means independent of said attaching means forsecuring said yielding members to said supporting member and a stylusbar secured to said yielding members.'

47. The combination with a member having a pair of spaced rigid armsrigid therewith, of st lus barprojectin' in the space between said arms.and a yie ding connection between each. of stylus bar.

48. The combination with a stylus bar, of spaced yielding members freeto bend but said arms and said held against torsion, each of saidmembers being fixed at one end and free at its opposite end and saidmembers being connected at their free ends to said stylus bar.-

49. The combination with a stylus bar, of spaced yielding members freeto bend but held against torsion, each of said members being fixed atone end and free at its opposite end and said members. bein connected attheir free ends to said stylus ar forming the sole su port of said bar.

50. The comlimation with a stylus bar, of spaced yielding members freeto bend but held against torsion, each of said members being fixed atone end and free at its opposite end and said members bein connected attheir free ends to said st lus ar forming the sole support of sai barand restraining said barto oscillate-upon a substantially fixed axis.

In witness whereof I have hereunto set my hand this seventh day ofFebruary, A. 'D. 8

ELDRIDGE R. JOHNSON. \Vitnesses:

ALs'roN B. MoUL'roN, 1 Timmy Conn KENNEDX.

It is hereby certified that in Letters Patent No. 951,127.,granted March8, 1910, upon the application of Eldridge Johnson, of Merion,Pennsylvania, for an improvement in Sound-Boxes for Talking-Machines,errors appear in the printed specificationrequiring correction asfollows: Page 4, line 28, after the word box the word casing should beinserted; same page, line 54, before the word socket" the word stylusshould be inserted; and that the said Letters Patent should be read withthese corrections therein that the same may conform to the record of thecase I c. c. BILLINes, Acting Oomnaissioner of Patents.

It is hereby certified that in Letters Patent No. 951,127.,granted March8, 1910,

upon the 'application of Eldridge Johnson, of Motion, Pennsylvania, foran improvementin Sound-Boxes for Talking-Machines, errors appear in theprinted specification requiring correction as follows: Page 4, line 28,after the word box the word casing should be inserted; same page, line54, before the word socket" the vyord atylm should be inserted; and thatthe said Letters Patent should be read with these corrections thereinthat the same may conform to the record of the case in the PatentOfiice.

Signed and sealed this 5th day of April, A. D., 1910.

: [BELL] C. C. BILLINGS,

" Acting Commissioner of Patents.

